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103 lines
2.5 KiB
103 lines
2.5 KiB
// nip10.ts |
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function parse(event) { |
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const result = { |
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reply: void 0, |
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root: void 0, |
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mentions: [], |
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profiles: [], |
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quotes: [] |
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}; |
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let maybeParent; |
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let maybeRoot; |
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for (let i = event.tags.length - 1; i >= 0; i--) { |
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const tag = event.tags[i]; |
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if (tag[0] === "e" && tag[1]) { |
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const [_, eTagEventId, eTagRelayUrl, eTagMarker, eTagAuthor] = tag; |
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const eventPointer = { |
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id: eTagEventId, |
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relays: eTagRelayUrl ? [eTagRelayUrl] : [], |
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author: eTagAuthor |
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}; |
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if (eTagMarker === "root") { |
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result.root = eventPointer; |
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continue; |
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} |
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if (eTagMarker === "reply") { |
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result.reply = eventPointer; |
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continue; |
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} |
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if (eTagMarker === "mention") { |
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result.mentions.push(eventPointer); |
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continue; |
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} |
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if (!maybeParent) { |
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maybeParent = eventPointer; |
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} else { |
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maybeRoot = eventPointer; |
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} |
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result.mentions.push(eventPointer); |
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continue; |
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} |
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if (tag[0] === "q" && tag[1]) { |
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const [_, eTagEventId, eTagRelayUrl] = tag; |
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result.quotes.push({ |
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id: eTagEventId, |
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relays: eTagRelayUrl ? [eTagRelayUrl] : [] |
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}); |
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} |
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if (tag[0] === "p" && tag[1]) { |
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result.profiles.push({ |
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pubkey: tag[1], |
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relays: tag[2] ? [tag[2]] : [] |
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}); |
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continue; |
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} |
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} |
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if (!result.root) { |
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result.root = maybeRoot || maybeParent || result.reply; |
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} |
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if (!result.reply) { |
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result.reply = maybeParent || result.root; |
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} |
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; |
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[result.reply, result.root].forEach((ref) => { |
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if (!ref) |
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return; |
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let idx = result.mentions.indexOf(ref); |
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if (idx !== -1) { |
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result.mentions.splice(idx, 1); |
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} |
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if (ref.author) { |
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let author = result.profiles.find((p) => p.pubkey === ref.author); |
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if (author && author.relays) { |
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if (!ref.relays) { |
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ref.relays = []; |
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} |
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author.relays.forEach((url) => { |
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if (ref.relays?.indexOf(url) === -1) |
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ref.relays.push(url); |
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}); |
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author.relays = ref.relays; |
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} |
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} |
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}); |
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result.mentions.forEach((ref) => { |
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if (ref.author) { |
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let author = result.profiles.find((p) => p.pubkey === ref.author); |
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if (author && author.relays) { |
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if (!ref.relays) { |
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ref.relays = []; |
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} |
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author.relays.forEach((url) => { |
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if (ref.relays.indexOf(url) === -1) |
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ref.relays.push(url); |
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}); |
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author.relays = ref.relays; |
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} |
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} |
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}); |
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return result; |
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} |
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export { |
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parse |
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};
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